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Front Wheel Alignment: Inspection

WARNING: This page is about a different car, the 2004 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT TIRE (See  INSPECTION  ) 
  2. MEASURE VEHICLE HEIGHT 

    Vehicle height: 

    FF: 

    VEHICLE HEIGHT

    Front (A - B) 114 mm (4.48 in.)
    Rear (D - C) -18.0 mm (-0.7 in.)

    4WD: 

    VEHICLE HEIGHT CLEARANCE

    Front (A - B) 116 mm (4.57 in.)
    Rear (D - C) -53.5 mm (-21 in.)
    Fig 1: Identifying Ground Clearance Of Front Wheel Center
    G03062595Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Measuring points: 

    A: Ground clearance of front wheel center 

    B: Ground clearance of lower suspension arm No. 2 set bolt center 

    C: Ground clearance of rear axle carrier bush set bolt center 

    D: Ground clearance of rear wheel center 

    NOTE: Before inspecting the wheel alignment, adjust the vehicle height to the specified value.

    If the vehicle height is not the specified value, Adjust it by pushing down or lifting the body.

    Fig 2: Identifying Ground Clearance Of Rear Axle Carrier Bush Set Bolt Center
    G03062596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT TOE-IN: 

    Toe-in 

    TOE-IN SPECIFICATION

    Toe-in (total) A+B: 0° +/- 12'(0° +/-0.2°) C - D: 0 +/- 2 mm (0 +/- 0.08 in.)

    If the toe-in is not within the specified value, adjust it at the rack ends.

    Fig 3: Identifying Toe-In
    G03062597Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. ADJUST TOE-IN 
    1. Remove the rack boot set clips.
    2. Loosen the tie rod end lock nuts.
    3. Turn the right and left rack ends by an equal amount to adjust the toe-in.
      NOTE: Adjust the toe-in to the center of the specified value as much as possible.
    4. Make sure that the lengths of the right and left rack ends are the same.
    5. Torque the tie rod end lock nuts.

      Torque: 74 N.m (755 kgf.cm, 55 ft.lbf) 

    6. Place the boots on the seats and install the clips.
    NOTE: Make sure that the boots are not twisted.
    Fig 4: Identifying Tie Rod End Lock Nuts
    G03062598Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSPECT WHEEL ANGLE 
    Fig 5: Identifying Inspect Wheel Angle
    G03062599Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the steering wheel fully and measure the turning angle.

    Wheel turning angle: 

    FF: 

    TURNING ANGLE

    Inside wheel 42°45' +/- 2° (42.75° +/- 2°)
    Outside wheel 36°21'(36.35°)

    4WD: 

    TURNING ANGLE RADIOUS

    Inside wheel 42°42' +/- 2° (42.70° +/- 2°)
    Outside wheel 36° 16' (36.27°)

    If the right and left inside wheel angles differ from the specified value, check the right and left rack end lengths.

  6. INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION 
    Fig 6: Inspecting Camber, Caster & Steering Axis Inclination
    G03062600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Install the camber-caster-kingpin gauge or position the vehicle on the wheel alignment tester.
    2. Inspect the camber, caster and steering axis inclination.

    FF- 

    Fig 7: Camber, Caster & Steering Axis Inclination Chart (FF)
    G03062601Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    4WD: 

    Fig 8: Camber, Caster & Steering Axis Inclination Chart (4WD)
    G03062602Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the caster and steering axis inclination are not within the specified values, after the camber has been correctly adjusted, re-check the suspension parts for damaged and/or worn out parts.

  7. ADJUST CAMBER 
    NOTE: After the camber has been adjusted, inspect the toe-in.
    1. Remove the front wheel.
    2. Remove the 2 nuts on the lower side of the shock absorber.
      Fig 9: Removing Lower Side Of Shock Absorber
      G03062603Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: When removing the nut, hold the bolt not to rotate.
    3. Clean the installation surfaces of the shock absorber and the steering knuckle.
    4. Temporarily install the 2 nuts.
      Fig 10: Adjusting Camber
      G03062604Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Adjust the camber by pushing or pulling the lower side of the shock absorber in the direction in which the camber adjustment is required.
    6. Tighten the nuts.

      Torque: 210 N.m (2,140 kgf.cm, 155 ft.lbf) 

      NOTE: When installing nut, stop the bolt from rotating and torque the nut.
    7. Install the front wheel.

      Torque: 103 N.m (1,050 kgf.cm, 76 ft.lbf) 

    8. Check the camber.
      NOTE:
      • Adjust the camber to the center of the specified value as much as possible.
      • Adjusting value for the set bolts is 6' - 30' (0.1 ° - 0.5°).

      If the camber is not within the specified value, using the following table, estimate how much additional camber adjustment will be required, and select the camber adjusting bolt.

      NOTE: Tighten the adjusting bolt with a washer and a new nut.
      Fig 11: Bolt & Washer Chart
      G03062605Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Perform the procedure mentioned above again. At step (b), replace 1 or 2 selected bolts.
      NOTE: When replacing the 2 bolts, replace 1 bolt for each time.
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